Thomas stuart brown



(No Model.) f

T. S. BROWN.

MOWBR.' No. 604,851. Patented May 31, 1,898.

UNITED STATES PAT-ENT erica.

THOMAS ISTUART BROWN, OFIPOUGHKEEPSIE, vNew YORK, AssIeN'OR To y 'run ADRIANOE, PLATT a COMPANY, on SAME PLAGE.

MOWER.

` SPECIFICATION forming part 0f Letters Patent No. 604,851, dated May 31, 18,98.

I Application led 'December 15, 1897. Serial No. 661,979. (No model.) v

To ally wh'o'n, it mag/concern.- Y Beit known that LTHOMA'S STUART BROWN, ia citizen of the United States, residing at Poughkeepsie, in the county of Dutchess and State of New York, have invented new and useful Improvements in Mowers, of which the following is a specification.

. Y This invention relates to the guide devicesl whereby the head at the inner end of the cutter-bar is guided inthe adjacent shoe.

The object of this invention is to provide removable wear-pieces of `simple construction which can be easily applied and removed and which can be firmly clamped in position.

In the accompanying'drawings, Figure 1 is a fragmentary top plan view of the shoe and the cutter mechanism. Fig. 2 is a vertical longitudinal section thereofl in line 22,- Fig. l. Fig. 3 is a verticalvtransverse swection in line 3 3, Fig. 1. Figs. 4 and 5 ,are perspective views of the upper and lower gibs, respectively. Fig. G is a perspective view of the supporting-cap. e

Like letters of reference refer. to like parts in the several g'ures.

A represents the supporting-shoe at the inner end of the finger-bar B, which is secured tothe top of the vshoe and provided with the usual fingers orguards b. Crepresents the reciprocating cutter-bar carrying the knives or cutters c and provided at its inner end with the head D, which is pivotally connected withthe .pitmanE The head of the cutter-bar is provided centrally o n its under side with a longitudinal rib d, which is :guided in a way or groove d', formed between the shoe and the front edge of the finger-bar. The rear portion of the cutter-bar head over- 'hangs the finger-bar. E represents the front retaining-plate, whichis secured to the front portion of the shoe and overlaps the front portion of the head of the cutter-bar. F represents the supporting-cap, which overhangs the rear portionv of the head of the cutterbar and is provided with a lug g on the upper side. This lug and a similar lug g' on the rear en'd of the shoe are connected with the usual coupling-bar of the mowing-machine. The supporting-cap is seouredvto. the top of the ingerbar and lshoe by bolts hgpassing through the shoe, bar, and cap, 'asI shown in -wardly-projecting flat tongues' t.

Fig. 3. All of these parts may be of any ordinaryor suitable construction.

, I J represent lower and upper gibs, shims, or wear-pieces, between which the rear portion of the cutter-bar head is guided and which receive the greater portion of the wear. The lower gib consists of a flat wear-plate 1,', which is provided with one or more rearrlhe plate iisrarranged between the top of the fingerbai. and the under side of the cutter-bar head, and its tongues are arranged in recesses 7-,

formedin the under side of the cap. Thel upper gib or shim consists of a flat wear-plate j, having a depending shoulder or offset e7" along the rear edge of the plate and one or more curved ton guesjz, projecting rearwardly from the offset. The wear-plate j is interposed between the top of the cutter-bar head and the under side of the front portion of the cap. The oset is arranged between the rear edge of the cutter-bar head and a forwardlyfacing shoulder Z on the under side of the cap, and the tongues rest upon the tongues of the lower gib within the recesses k'. The gibs are held in place by a clamping-screw m, arranged in a screw-threaded Opening in the cap and bearing down against the upper side of one of thetongues of the upper gib, whereby this tongue is pressed against lthat of the lower gib and the latter is pressed against the iinger-bar. The tongues of the upper gib are curved and rest with their convex under sides on the tongues of the lower gib. The clamping-screw bears against' the rear portion of one of the curved tongues in rear of the point at which the convex under side of the tongue is supported, and thereby rocks the tongue and causes the wear-plate of the upper gib to be pressed upwardly against the.

under side of the cap. The clamping-screw therefore presses the upper gib upwardly against its seat in the under sidejof the cap and the lower gib downwardly again st the top of the nger-bar, whereby both gibs are securely clamped and rattling is prevented.

When the gibs arel worn out, they can be easily and quickly removed and renewed at a small cost.

I claim as my invention- Il l, The combination with the finger-bar, the

IOO

' shoe or support arranged at the inner end of removable gibs arranged on the upper and lower sides of said head and provided with tongues which are arranged in the recesses of the cap, and nieanswhereby the gibs are clamped, substantially as set forth.

3. The combination with the shoe and the yreciprocating cutter-bar head, of a cap secured to the shoe and provided on its under side with a forwardly-facing shoulder and with one or more recesses, a lower gib consisting of` a wear-plate bearing against the under side of the cutter-bar head and provided with a tongue projecting into the recess of the cap, an upper gib consisting of a wear-plate interposed betweenthe top of the.

cutter-bar head and the under side of the cap` a depending oset arranged between the rear edge of the cutter-bar head and the shoulder of the cap and a tongue projecting into the v recess of the cap, and means whereby the tongues are clamped in said recess, substantially as set forth.

4. The combination with the shoe or support and the cutter-bar head, of a cap which projects over said head, an upper gib seated in the under side of said 'cap and having a curved tongue, a lower gib having a tongue on which said curved tongue rests, and a clamping-screw which bears upon the curved tongue and whereby the upper gib is pressed upwardly andthe lower gib downwardly, each against its seat, substantially as set forth.

NVitness my hand this 8th day of December, 1897. 4

THOMAS STUART BROWN. Vitnesse's:

J. MoRsoHAUsER, PILAR MARILL, 

